self.machine.state_machines.*¶
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class
mpf.devices.state_machine.
StateMachine
(*args, **kwargs)¶ Bases:
mpf.core.system_wide_device.SystemWideDevice
,mpf.core.mode_device.ModeDevice
A generic state machine.
Accessing state_machines in code
The device collection which contains the state_machines in your machine is available via
self.machine.state_machines
. For example, to access one called “foo”, you would useself.machine.state_machines.foo
. You can also access state_machines in dictionary form, e.g.self.machine.state_machines['foo']
.You can also get devices by tag or hardware number. See the DeviceCollection documentation for details.
Methods & Attributes
State_machines have the following methods & attributes available. Note that methods & attributes inherited from base classes are not included here.
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enable
() → None¶ Enable handler.
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event_enable
(**kwargs)¶ Event handler for enable event.
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format_log_line
(msg, context, error_no) → str¶ Return a formatted log line with log link and context.
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get_placeholder_value
(item)¶ Get the value of a placeholder.
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raise_config_error
(msg, error_no, *, context=None) → NoReturn¶ Raise a ConfigFileError exception.
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state
¶ Return the current state.
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subscribe_attribute
(item, machine)¶ Subscribe to an attribute.
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